\u6811\u94fe\u5256\u5206\uff08\u3002\u3002\u3002\u73b0\u5728\u7684\u5199\u6cd5\u3002\u30023s+-\u3002\u3002\u3002<\/a>
\n.. \u53ea\u4fdd\u7559\u7684 path \u8fd9\u4e00\u4e2a\u7ed3\u6784\u4f53\u3002\u3002\u76f4\u63a5\u8bb0\u5f55\u6bcf\u4e2a\u70b9\u6240\u5728\u7684\u8def\u5f84\u3002\u3002\u3002<\/p>\n\/** ` Micro Mezzo Macro Flation — Overheated Economy ., **\/<\/p>\n
#include
\n#include
\n#include
\n#include
\n#include <\/p>\nusing namespace std;<\/p>\n
#define REP(i, n) for (int i=0;i inline void RD(T &);
\ntemplate inline void OT(const T &);
\ntemplate inline T& _RD(T &x){ RD(x); return x;}
\ninline void RS(char *s){scanf(“%s”, s);}
\ntemplate inline void RD(T0 &x0, T1 &x1){RD(x0), RD(x1);}
\ntemplate inline void RD(T0 &x0, T1 &x1, T2 &x2){RD(x0), RD(x1), RD(x2);}
\ntemplate inline void RST(T &A){memset(A, 0, sizeof(A));}
\ntemplate inline void RST(T0 &A0, T1 &A1, T2 &A2, T3 &A3){RST(A0), RST(A1), RST(A2), RST(A3);}
\ntemplate inline void FLC(T &A, int x){memset(A, x, sizeof(A));}
\ntemplate inline void CLR(T &A){A.clear();}
\ntemplate inline void checkMax(T &a,const T b){if (b>a) a=b;}
\ninline int _1(int i){return 1< inline void RD(T &x){char c; for (c = getchar(); c < '0'; c = getchar()); x = c - '0'; for (c = getchar(); c >= ‘0’; c = getchar()) x = x * 10 + c – ‘0’;}
\ntemplate inline void OT(const T &x){printf(“%d\\n”, x);}
\ntemplate inline T max(T a, T b, T c){return max(max(a, b), c);}
\n\/* …………………………………………………………………………………………………………………. *\/
\nconst int N = 10001, M = 2 * N;<\/p>\nint l[N], r[N], p[N], w0[N], w1[N]; bool rt[N];
\n\/\/ Link-cut tree
\nint hd[N], nxt[M], a[M], b[M], w[M], h[M\/2];
\n\/\/ Adjacent list<\/p>\n
int n, ans;<\/p>\n
#define lx l[x]
\n#define rx r[x]<\/p>\n
inline void Update(int x){
\n w1[x] = max(w1[lx], w1[rx], w0[x]);
\n}<\/p>\n
inline void Set(int l[], int y, int x){
\n l[y] = x, p[x] = y;
\n}<\/p>\n
inline void Rotate(int x){
\n int y = p[x], z = p[y];<\/p>\n
if (!rt[y]) Set(y == l[z] ? l : r, z, x);
\n else p[x] = z;<\/p>\n
if (x == l[y]) Set(l, y, rx), Set(r, x, y);
\n else Set(r, y, lx), Set(l, x, y);<\/p>\n
if (rt[y]) rt[y] = false, rt[x] = true; \/\/rt[0] = true;
\n Update(y); \/\/Update(x);<\/p>\n
}<\/p>\n
inline void Splay(int x){
\n while (!rt[x]) Rotate(x);
\n}<\/p>\n
void Access(int x){
\n int y = 0; do{
\n Splay(x);
\n rt[rx] = true, rt[rx = y] = false, Update(x);
\n x = p[y = x];
\n } while (x);
\n}<\/p>\n
\/\/ public:<\/p>\n
void Query(int x, int y){
\n Access(y), y = 0; do{
\n Splay(x); if (!p[x]) OT(max(w1[rx], w1[y]));
\n rt[rx] = true, rt[rx = y] = false, Update(x);
\n x = p[y = x];
\n } while (x);
\n}<\/p>\n
void Modify(int x, int val){
\n Splay(x), w0[x] = val;
\n}<\/p>\n
#define v b[i]
\n#define w w[i]<\/p>\n
inline void dfs(int u = 1){
\n for(int i=hd[u];i;i=nxt[i]) if (!p[v]){
\n p[v] = u, w0[v] = w, dfs(h[i>>1] = v);
\n }
\n}<\/p>\n
#undef x
\n#undef w<\/p>\n
int main(){<\/p>\n
\/\/freopen(“in.txt”, “r”, stdin);
\n \/\/freopen(“out.txt”, “w”, stdout);
\n \/\/ios::sync_with_stdio(false);<\/p>\n
Rush{
\n \/\/ Initializing Phase …<\/p>\n
FOR_C(i, 2, _RD(n) << 1){\n RD(a[i], b[i], w[i]), a[i|1] = b[i], b[i|1] = a[i], w[i|1] = w[i];\n nxt[i] = hd[a[i]], hd[a[i]] = i; ++i;\n nxt[i] = hd[a[i]], hd[a[i]] = i;\n }\n\n FLC(rt, true), p[1] = -1, dfs(), p[1] = 0;\n\n \/\/ Interaction Phase ...\n\n int a, b; char cmd[5];\n\n while (true){\n RS(cmd); if (cmd[0] == 'C') RD(a, b), Modify(h[a], b);\n else if (cmd[0] == 'Q') RD(a, b), Query(a, b);\n else break;\n }\n\n \/\/ Rececling ....\n\n RST(hd, p, l, r);\n }\n}\n[\/cpp]\n\n\n\n
External link:<\/h3>\n
https:\/\/www.spoj.com\/problems\/QTREE\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Brief description : \u52a8\u6001\u7ef4\u62a4\u6811\u4e2d\u4e24\u70b9\u4e4b\u95f4\u8def\u5f84\u4e0a\u8fb9\u6743\u7684\u6700\u5927\u503c\u3002 Tags: Classical Analysis : \u7ecf\u5178\u95ee\u9898.. . \u6811\u94fe\u5256\u5206 300- \u884c\uff0c3.10+ s \u52a8\u6001\u6811 150- \u884c\u3002\u3002\u3002 2.90+ s… \uff08\u76ee\u524d Yang Zhe \u4f5c\u4e1a\u91cc\u7684 \u5168\u5c40\u5e73\u8861\u4e8c\u53c9\u6811 \u8fd8\u4e0d\u77e5\u9053\u600e\u4e48\u5b9e\u73b0\u3002>_<\u3002\uff09 \u6811\u94fe\u5256\u5206\uff08\u3002\u3002\u8fc7\u53bb\u7684\u5199\u6cd5\u3002\u3002\u30023s+-\u3002\u3002\u3002 \u4e0a\u9762\u662f\u6211\u6700\u5f00\u59cb\u65f6\u7684\u5199\u6cd5\u3002\u3002\u5199\u7684\u975e\u5e38\u5c0f\u5fc3\u8c28\u614e\u3002\u3002\u3002\u4e0a\u6765\u5c31\u5206\u522b\u5bf9\u7ed3\u70b9\u3001\u8fb9\u3001\u8def\u5f84\u5404\u5b9a\u4e49\u4e86\u4e00\u7ec4\u7ed3\u6784\u4f53\u3002\u3002\u3002\uff08Vertex, Edge, Path … \u7136\u540e\u5168\u7a0b\u6307\u9488\u6307\u6765\u6307\u53bb\u3002\u3002 \u70b9\u548c\u8fb9\u5404\u6709\u4e00\u4e2a host \u6307\u9488\u3002\u3002\uff08\u70b9\u5bc4\u5bbf\u5728\u8fb9\u4e0a\u3002\u3002\u8fb9\u5bc4\u5bbf\u5728\u91cd\u8def\u5f84\u4e0a\u3002\u3002\u3002 \u3002\u3002\u8def\u5f84\u7684\u672c\u4f53\u662f\u4e00\u68f5\u7ebf\u6bb5\u6811\uff0c\uff08\u3002\u3002\u4e3a\u4e86\u5237\u699c\u8fd8\u7279\u5730\u5199\u6210\u4e86\u81ea\u4e0b\u5411\u4e0a\u7ef4\u62a4\u7684\u5f62\u5f0f\u3002\uff08\u56e0\u4e3a\u6709\u526a\u679d\u3002\u3002\u3002\u3002 \u3002\u7136\u540e\u8bb0\u5f55\u5176\u6700\u9ad8\u70b9\u7684 Vertex \u7684\u6307\u9488\u3002\u3002\uff08\u3002head\u3002\u3002\uff08\u3002\u3002\u8df3\u94fe\u548c\u8be2\u95ee\u7684\u65f6\u5019\u8ba1\u7b97 offset \u90fd\u8981\u7528\u5230\u3002\u3002\u3002 \u3002\u3002 \u6811\u94fe\u5256\u5206\uff08\u3002\u3002\u3002\u73b0\u5728\u7684\u5199\u6cd5\u3002\u30023s+-\u3002\u3002\u3002 .. \u53ea\u4fdd\u7559\u7684 path \u8fd9\u4e00\u4e2a\u7ed3\u6784\u4f53\u3002\u3002\u76f4\u63a5\u8bb0\u5f55\u6bcf\u4e2a\u70b9\u6240\u5728\u7684\u8def\u5f84\u3002\u3002\u3002 \/** ` Micro Mezzo Macro Flation — Overheated Economy […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[21],"tags":[39],"class_list":["post-58","post","type-post","status-publish","format-standard","hentry","category-spoj","tag-39"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2tdP7-W","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/58","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/comments?post=58"}],"version-history":[{"count":3,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/58\/revisions"}],"predecessor-version":[{"id":2704,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/58\/revisions\/2704"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/media?parent=58"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/categories?post=58"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/tags?post=58"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}